[英]Query 2 tables with left join that id dont exist in 3rd table
我有
table1 table2 table3
id id id
name table1id customerid
table3id
我如何获取table1.name加入table2,其中customerid = someid和table3id在table2中不存在
SELECT
t1.id
t1.name
FROM
Table1 t1
LEFT JOIN Table2 t2
on t1.id = t2.table1id
LEFT JOIN Table3 t3
on t2.table3id = t3.id
AND t3.customerid = 93
WHERE
t3.id IS NULL
SELECT table1.name
INNER JOIN table2 ON table1.id = table2.table1id
WHERE table2.id NOT IN (SELECT id FROM table3)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.